Bag-sewing machine.



L. A. BAUDOI-N. BAG SEWING MACHINE.

APPLICATION FILED AUGLB, 1912.

Patented Sept. 29, 1914.

2 SHEETS-SHEET 1.

L. A. BAUDOIN.

BAG SEWING MACHINE.

APPLIOATION FIL'ED AUG. 5, 1912., Q 1,1 1 1 77 Patented Sept. 29,1914.

2 SHEETS-SHEET 2.

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CHICAGO, rumors; A coarse-Arron or rumors.

ASSIGNOR To EDWARDS & LOOIVLIS 00., F

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.Specification. of Letters Patent.

Patented Sept. as, 19142.

Application filed August 5, 1912. Serial No. 713,471.

To all whom t'tmay concern:

Be it known that 1, Louis A. BAono1N ,.a citizen of the United States of America, and a resident. of Chicago, county of Cook, State of Illinois, have invented certain new and useful Improvements in Bag sewing Machines, of which the following is a specification.

The main objects of this invention are to provide :an improved construction in bag sewing devices, in which after the bag is filled it is caused to move past a sewing machine for the purpose of permitting the bag to be sewed; to provide improved means for obtaining a relative adjustment of the sewing mechanism and the-bag-conveyer so as to accommodate bags of various sizes; and to provide improved means for controlling the mechanism which operates the con veyer and the sewing mechanism. v An illustrative embodiment of this invention is shown in the accompanying drawings, in which?- Figure 1 is a plan view of a specific form of the device constructed according to this invention. Fig. '2 is a sectional elevation "taken on the line A-A of. Fig. 1-. Fig. 3 is a rear end view. Fig. 4: is "an enlarged sectional detail of the clutch mechanism, the

section being taken on the line BB of Fig. 3. Fig. 5 is an enlarged side elevation, of the clutch mechanism as viewed from the plane of the line C-C of Fig. 3. r

In the construction shown in the drawings, a supporting frame 1, on which the operating mechanism is supported, is arranged adjacent to-a pit 2 suitable for the operator to stand in while operating and feeding the machine.

A traveling platform or conveyor belt 3 of suitable design is mounted in the pit 2 so that its upper surface lies in substan* tially the same plane with the surrounding floor. The conveye'r is lined in its relation to the supporting frame with respect to vertical adjustment. The upper lap of the conveyer belt 3 is maintained against sagging, when carrying its load, by a plurality of'closely spaced rollers 38 ournaled 1n the bars 39. I

Suspended over theconveyer} 1s a sewing machinehead 4 which carries the sewing mechanism. The head t is supported e c from frame work tiby means oh. the rocker.

arms ;or bars 6, arranged in pairs horizontally and vertically. These arms are fulcrumed at 6 to the supporting frame 5 and-arc adapted to be shifted in a vertical dlrection for the purpose of adjusting the sewlngmachine head 4 relatively of the conveyer, whereby the device is adapted to be adjusted for sewing bags of various heights.

Driving connections are made from the counter-shaft 22 to the conveyer 3 and the sewing mechanism in the head 4, said shaft being driven by the belt 8 connected to the pulleys 9 and 14. Power is transmitted to the sewing .mechanism by Ineans'of the belt 7, connecting the pulleys 9 and 11 operating over the idlers 10. The countershaft 22 is. connected to a second countersha-ft 23 by means of sprocket wheels 22 and 23 and sprocket- -chain 26 from which the conveyer pulley 29 is directly driven by means of the sprocket chain 27 operating over the sprocket wheels 24 and 25. Therela'tive size of the pulleys 94 and llkanol the several sprocket wheels is such as will cause the conveyer and sewing mechanism to operate at the proper speeds to effect the sewing of the bag.

Th'ebelt 12 connects a pulley 13 with any suitable source of power, the rotation of which is transmitted to the pulley 14 when the pulleys 13 and 1e are shifted so as to cause the engagement of the opposed clutch faces formed thereon. The pulley 14: has a leather disk 16 secured. to its inner face, against whichthe face 13 of the pulley 13 bears whenthe pulley 13 is shifted towardthe pulley 1d. The pulleys 13 and 1-1 are loosely mounted on the shaft 1-5 carried by the bracket secured to an adjacent part of the supporting frame.

Mechanism for shifting the pulley 13, to cause the engagement of the clutch faces, comprises an arm or part 17 shiftably supported on the bracket 15* and having an inclined pad or plate 18 at the end thereof, which, when the arm 17 is shifted, bears against the member 19 and urges the pulley 13 toward the pulley 14: so as to cause the engagement of the clutch faces. The arm 17 is normally shifted by the spring 17 so as to cause the pad 18 to be disengaged from the member 19, and thereby permit the disengagement of the clutch faces 13 and 16. The shifting of the arm 17 against the action of the spring 17 to cause the engagement of the clutch faces, is controlled by a rod 20 rotatably mounted at the base of the frame and extending from adjacent to the front edge of the conveyer to the rear part of the supporting frame. Transversely disposed arms 20 and 20 are connected to opposite ends of the rod 20, the arm 20 being connected to the arm 17 by the link 21 and the arm 20 having a treadle 20? secured thereto by means of which the rod 20 is rotated through the depressi'on of the arm -20 for the purpose of shifting the arm 17 to cause the engagement of the clutch faces the bag on the pulleys 13 and 14s.

Adjustment of the sewing head 4; with respect to the platform 3 and carried thereby is obtained by means ofthe pair of blocks 30 and 31 arranged one above the other and connected horizontally between the arms 6, which are arranged in two pairs one above the other. The arms are all of substantially equal length between their respective points of pivoting to the frame and to the sewing mechanismr Each block is provided with shoulders or pins 32 on both ends which extend through the slots or notches 32' in the arms 6. Verticall' disposed guideways 33 are arranged on t e supporting frame for the purpose of receiving the pins 32 and guiding the blocks in their vertical movement.

A screw 34: is rotatably mounted in the frame 5 and has threaded engagement with the blocks 30 and 31 whereby in turning said screw will cause a vertical shifting of the arms 6. A crank or handle 36 is attached to the screw 34: by means of which it is turned. The use of the vertical pairs of arms insures that when the head t is shifted it will remain substantially upright and parallel to the same vertical plane for all positions' and'the use of horizontal pairs of arms insures greater rigidity.

lhe operation of the device is as follows:

The sewing machine head 4 is adjusted to the desired position above the conveyer to insure the proper sewing of thebags, the adjustment being conveniently and quickl made by the turning of the screw 34. g filled bag 37 is then set upon the conveyer and the treadle 20 depressed which pulls the pad 18 downward and forces the clutch faces of the pulleys 13 and 14: into engagement with each other. llhe engagement of these clutch faces causes the rotation of the pulley 14 thereby driving the countershaft 22 which causes the conveyer to move and the sewing mechanism to o erate on the bag as it passes. The treadle s held depressed .until the bag has reached the other end of the conveyer when it is released while the operator reaches for another bag.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departing from the spirit of this invention as defined by the following claims.

. I claim:

1. A bag sewing device, comprising a supportinglframe; a conveyer adapted for carrying led bags; sewing mechanism adapted to sew the mouths of the bags while carried by said conveyer; means for operating said sewing mechanism and said conveyer;'a pair of arms fulcrumed on said frame one above the other on horizontally disposed axes, and carrying said sewing mechanism hinged to each of said arms; and means for shifting said arms vertically for adjusting said sewingvmeehanism relatively to said conveyer.

2. A bag sewing device, comprising a supporting frame, a conveyer mounted in fixed vertical relation to the frame and adapted to carry filled bags, sewing mechanism adapted to sew the mouthsof the bags while carried by said conveyer, means for operatin said mechanism and said conveyer, a pair of arms fulcrumed on said frame intermediate of their ends and each hinged to said sewing mechanism at its outer end, and a screw rotatably mounted on said frame and having threaded connection with said arms at their inner ends whereby said sewing mechanism is adapted to be adjusted vertically relatively of said conveyer.

3. A bag sewing device, comprising a supporting frame; a conveyor mounted in fixed vertical relation to the frame and adapted to carry filledbags; sewing mechanism adapted to sew the mouths of the bags while carried by said conveyerfmeans for operating said mechanism and said conveyer; a plurality of rocker arms fulcrumed on said frame in pairs vertically and horizontally and having said sewing mechanism carried at the outer ends thereof; horizontally disposed blocks mounted between said pairs of arms; vertical guideways on said frame; shoulders on said blocks adapted to engage said guideways; said arms being slotted at their inner ends to receive said shoulders; and a screw rotatably mounted on said frame having threaded engagement with said blocks and adapted when turned to move said blocks in a vertical direction whereby said sewing mechanism is adjusted relatively of said conveyer.

4. A bag sewing device, comprising a supporting frame; a conveyer adapted for carrying filled bags along said frame; sewing mechanism carried by said frame and'having movement relatively to said frame toward and from said conveyer, and adapted to sew the mouths of the bags while carried by said conveyer; and a pair of arms pivoted to said frame and arranged parullclly ene over the other and prhjectin'g over the Signed at Chicago this first day of Am said conveyer to support the said sewing gust, 1912. machine in an upright position during its movement-toward and from said conveyer, LOUIS BAUDOIN' 5 said arms being of substantially equal length Witnesses:

between pqints of ivoting'to the frame and SHERMAN T. EDWARDS,

t0 the sewmg mec anism respectively. J. CLIFFORD CURRY. 

